Fatal error: Uncaught Error: Class 'Illuminate\Mail\Mailable' not found in /data/htmlwww/laravel-system/vendor/swoolecan/laravel-baseapp/src/Mail/Newsletter.php:9
Stack trace:
#0 {main}
thrown in /data/htmlwww/laravel-system/vendor/swoolecan/laravel-baseapp/src/Mail/Newsletter.php on line 9